... . Pitch: P12.7MM 3.factory direct Chain wheel win100 technical indicators:Outside Diameter: DØ152.01MMCenter ... manganese steel16.heat treatmenthigh frenquencesurface treatmentelectrophoresispackingBlister card package, plastic package, bubble package, carton package or as customers ... design, develop, produce and trade including motorcycle chain wheel, driving chain, shock absorber, brake shoe, lights, ...